Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352729 | Use of pigment formulations for the preparation of pastes, printing inks and coatings | Hermann Birkhofer, Walter Denzinger, Heinrich Hartmann, Juan Antonio Gonzalez Gomez, Paul Guenthert +4 more | 1994-10-04 |
| 5344465 | Colorant mixtures containing azo compounds based on phenyloxadiazolylaniline | Horst Colberg | 1994-09-06 |
| 5324354 | Pigment formulations containing a pigment, a colorant having an external basic group and a surfactant | Juan Antonio Gonzalez Gomez, Gustav Bock, Paul Guenthert | 1994-06-28 |